E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Greater Manchester · M25
Insulated Fire Glass (EI) in Prestwich, Greater Manchester
From the M25 district outwards, we arrange insulated fire glass for buildings across Prestwich, matching glass, frames and seals to tested evidence rather than guesswork.
EI 30 – EI 120M25England
Quote for Prestwich
Tell us what you need. We reply with next steps and a guide price.
What's involved with insulated fire glass in Prestwich
Insulated fire glass, classified EI, is glazing that maintains integrity and keeps the temperature rise on the non-fire side within set limits for the rated time. It is usually made of several glass panes bonded with interlayers that foam into an insulating barrier when heated, or with a clear gel that absorbs heat.
- EI 30, EI 60, EI 90 and EI 120 glass
- Handling and installation of heavy panes
- Impact-classified insulating glass
- Matched glazing systems and seals
What to check before ordering insulated fire glass in Prestwich
The temperature rule
EI testing limits the average temperature rise on the unexposed face to 140°C and any single point to 180°C, which is why people can pass it.
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
How it works
When heated, the interlayers turn opaque and expand, forming an insulating shield. After a fire the glass will need replacing.
England regulations that shape the job
England Which rules apply?
Building work in England is covered by the Building Regulations 2010, with fire safety guidance in Approved Document B and impact safety guidance for glazing in Approved Document K.
Once a building is in use, the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to maintain fire safety measures, including fire-resisting glazing. The Fire Safety (England) Regulations 2022 add duties for multi-occupied residential buildings, including fire door checks in buildings over 11 metres.
In higher-risk buildings, broadly 18 metres or seven storeys with two or more homes, the Building Safety Regulator is the building control authority. England is also phasing out BS 476 references from Approved Document B, with the remaining fire-resistance references due to go in September 2029.
Where we work around Prestwich
Coverage around Prestwich includes the M25, M45, M7, M26, M27, M6 districts and nearby Whitefield, Radcliffe, Salford. Prestwich lies roughly 7 km from Manchester, within our Greater Manchester coverage.
EI glass in WhitefieldEI glass in RadcliffeEI glass in SalfordEI glass in SwintonEI glass in Middleton
What every Prestwich quote includes
Rated systems, not just rated glass
Every quote in Prestwich identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Work around occupied buildings
We can phase work in Prestwich around residents, staff or pupils, with out-of-hours options.
Fixed written quotes
After survey you get a fixed written quote for the agreed scope, so Prestwich budgets are not open-ended.
Building types we cover in Prestwich
We can survey and quote for public buildings, retail and leisure units and other building types in Prestwich.
Insulated Fire Glass (EI): Prestwich questions
Why is insulated fire glass so much more expensive?
It is a multi-layer product with specialist interlayers, and the frame and installation must suit its weight.
Does EI glass need replacing after a fire?
Yes. Once the interlayers have reacted, the glass has done its job and must be replaced.
Can you price insulated fire glass in Prestwich from photos?
We can give a guide range from photos and sizes, including a clear photo of any marks on the glass. A fixed price follows a survey.
Which rules apply to fire-rated glazing in Prestwich?
Building work in Prestwich follows the Building Regulations 2010 and Approved Document B, and occupied buildings are covered by the Regulatory Reform (Fire Safety) Order 2005.
Related
Related services in Prestwich
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
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E 30 – EI 60
Stair, Lobby & Corridor Glazing
Glazed screens and doors on protected stairs, lobbies and corridors.
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E 30 – EI 60
Frameless Fire-Rated Glazing
Butt-jointed fire glass walls with minimal frames.
Learn more →Process
What happens next
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Survey
We visit Prestwich to measure, record existing marks and check the frames and substrate.
Quote and evidence
Your quote lists each item with its classification and the evidence it relies on.
Complete and document
Work is completed to the manufacturer's details and documented for your records.